:root {
    --primary-color: #31aee0;
    --primary-hover: #0c91ba;
    --secondary-color: #0b1522;
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --danger-color: #ef4444;
    --bg-body: #f8fafc;
    --bg-card: #ffffff;
    --text-main: #1e293b;
    --text-muted: #64748b;
    --border-color: #e2e8f0;
    --sidebar-width: 280px;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-body);
    color: var(--text-main);
    -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4,
h5,
h6 {
    font-weight: 600;
    color: var(--text-main);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    box-shadow: 0 1px 3px 0 rgb(0 0 0 / 0.1), 0 1px 2px -1px rgb(0 0 0 / 0.1);
    border-radius: 0.75rem;
}

.card-header {
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    padding: 1.25rem 1.5rem;
    font-weight: 600;
}

.form-control {
    border-radius: 0.5rem;
    border: 1px solid var(--border-color);
    padding: 0.625rem 1rem;
}

.form-control:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.2);
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    padding: 0.625rem 1.25rem;
    border-radius: 0.5rem;
    font-weight: 500;
    transition: all 0.2s;
}

.btn-primary:hover {
    background-color: var(--primary-hover);
    border-color: var(--primary-hover);
    transform: translateY(-1px);
}

/* Auth Page */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #f0f4ff 0%, #b6d9ea 100%);
}

.auth-card {
    width: 100%;
    max-width: 400px;
    padding: 2rem;
    border: none;
    box-shadow: 0 10px 25px -5px rgb(0 0 0 / 0.1), 0 8px 10px -6px rgb(0 0 0 / 0.1);
}

.brand-logo {
    color: var(--primary-color);
    font-weight: 800;
    font-size: 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
    justify-content: center;
}

.brand-logo i {
    font-size: 1.75rem;
}

/* Dashboard Layout */
.dashboard-container {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: var(--sidebar-width);
    background: #0b1522;
    border-right: 1px solid var(--border-color);
    position: fixed;
    height: 100vh;
    z-index: 100;
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    padding: 2rem;
}

.nav-link {
    color: #dbdbdb;
    padding: 0.75rem 1.5rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    border-left: 3px solid transparent;
}



.nav-link:hover,
.nav-link.active {
    color: var(--primary-color);
    background-color: #f8fafc;
    border-left-color: var(--primary-color);
}

.nav-link i {
    width: 20px;
    text-align: center;
}

.stat-card {
    border-left: 4px solid var(--primary-color);
}

.avatar-preview {
    width: 150px;
    height: 150px;
    object-fit: cover;
    border-radius: 50%;
    border: 3px solid var(--border-color);
    margin: 1rem auto;
    display: block;
}

/* Mobile Responsiveness */
@media (max-width: 768px) {
    .sidebar {
        transform: translateX(-100%);
        transition: transform 0.3s ease;
    }

    .main-content {
        margin-left: 0;
    }

    .sidebar.open {
        transform: translateX(0);
    }
}

.nav-pills .nav-link.active,
.nav-pills .show>.nav-link {
    color: #fff;
    background-color: #31aee0;
}